--- /dev/null
+// Copyright (c) 2015, Tobias Mueller tm(at)tm3d.de
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the
+// distribution.
+// * All advertising materials mentioning features or use of this
+// software must display the following acknowledgement: This product
+// includes software developed by tm3d.de and its contributors.
+// * Neither the name of tm3d.de nor the names of its contributors may
+// be used to endorse or promote products derived from this software
+// without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+#define F_CPU 8000000UL
+#define FP_CALC
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <avr/wdt.h>
+#include <avr/sleep.h>
+
+extern void OWINIT();
+
+
+uint8_t owid[8]={0x26, 0xA2, 0xD9, 0x84, 0xDD, 0xDD, 0x05, 0xCE};/**/
+uint8_t config_info[16]={0x01,0x06, 0x05,0x08, 0x04,0x07, 0x00,0x00, 0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+
+
+extern uint8_t mode;
+extern uint8_t gcontrol;
+extern uint8_t reset_indicator;
+extern uint8_t alarmflag;
+
+volatile uint8_t wdcounter;
+
+
+typedef union {
+#if defined(__AVR_ATtiny25__)
+ volatile uint8_t bytes[16];
+#else
+ volatile uint8_t bytes[64];
+#endif
+ struct {
+ uint8_t status; //1
+ int16_t temp; //2
+ uint16_t voltage; //4
+ uint16_t current; //6
+ uint8_t threshold; //8
+
+ uint8_t page1[8]; //9
+#if defined(__AVR_ATtiny25__)
+#else
+ uint8_t page2[8]; //17
+ uint8_t page3[8]; //25
+ uint8_t page4[8]; //33
+ uint8_t page5[8]; //41
+ uint8_t page6[8]; //49
+ uint8_t page7[8]; //57
+ //uint8_t crc; //65
+#endif
+ };
+} pack_t;
+volatile pack_t pack;
+
+#if defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
+
+#define DDR_SENSOR DDRB
+#define PORT_SENSOR PORTB
+#define PIN_SENSOR PINB
+#define SENSOR PB4
+#endif
+
+#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)
+#define DDR_SENSOR DDRA
+#define PORT_SENSOR PORTA
+#define PIN_SENSOR PINA
+#define SENSOR PINA2
+#endif
+
+
+
+#define SENSOR_sda_out DDR_SENSOR |= (1 << SENSOR)
+#define SENSOR_sda_in DDR_SENSOR &= ~(1 << SENSOR);PORT_SENSOR |= (1 << SENSOR) // release sda => hi in consequence of pullup
+#define SENSOR_sda_low PORT_SENSOR &= ~(1 << SENSOR)
+#define SENSOR_is_hi PIN_SENSOR & (1 << SENSOR)
+#define SENSOR_is_low !(PIN_SENSOR & (1 << SENSOR))
+
+volatile int16_t am2302_temp;
+volatile uint16_t am2302_hum;
+
+
+uint8_t am_wait(uint8_t _time,uint8_t _signal){
+ TCNT1=0;
+ while(TCNT1==0);
+ if (_signal)
+ while((SENSOR_is_hi)&&(TCNT1<_time)) {}
+ else
+ while((SENSOR_is_low)&&(TCNT1<_time)) {}
+
+ if (TCNT1>=_time) {return 1;}
+ return 0;
+}
+
+volatile uint8_t am2302_mode=0;
+volatile uint8_t timeout=0;
+
+
+
+#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)
+ISR(WATCHDOG_vect) {
+#else
+ISR(WDT_vect) {
+#endif
+ sleep_disable(); // Disable Sleep on Wakeup
+ am2302_mode++;
+ if (reset_indicator==1) reset_indicator++;
+ else if (reset_indicator==2) mode=0;
+/* if (timeout==2) {
+ DIS_TIMER;
+ EN_OWINT;
+ mode=OWM_SLEEP;
+ }
+ timeout++;*/
+ sleep_enable(); // Enable Sleep Mode
+
+}
+
+int testSW() {
+ uint8_t r;
+ DDRB&=~(1<<PORTB0); //Eingang
+ __asm__ __volatile__ ("nop");
+ PORTB|=(1<<PORTB0); //Pullup
+ __asm__ __volatile__ ("nop");
+ __asm__ __volatile__ ("nop");
+ __asm__ __volatile__ ("nop");
+ __asm__ __volatile__ ("nop");
+ __asm__ __volatile__ ("nop");
+ r=PINB&(1<<PORTB0);
+ __asm__ __volatile__ ("nop");
+ PORTB&=~(1<<PORTB0);
+ __asm__ __volatile__ ("nop");
+ DDRB|=(1<<PORTB0); //Eingang
+ return (r==0);
+
+
+}
+
+uint8_t am2302_1() {
+ int16_t lam2302_temp;
+ uint16_t lam2302_hum;
+ uint8_t rSREG;
+ uint8_t sensor_data[5];
+#if defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
+ TCCR1=(1<<CS12); //Clock/8 1µs
+#endif
+
+#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)
+ TCCR1B=(1<<CS11); //Clock/8 1µs
+#endif
+ SENSOR_sda_out;
+ SENSOR_sda_low; // MCU start signal
+ TCNT1=0;while(TCNT1==0);while(TCNT1<250) {}// start signal (pull sda down for min 0.8ms and maximum 20ms)
+ TCNT1=0;while(TCNT1==0);while(TCNT1<250) {}// start signal (pull sda down for min 0.8ms and maximum 20ms)
+ SENSOR_sda_in;
+ if (am_wait(200,1)) return 2;
+
+ // AM2302 response signal min: 75us typ:80us max:85us
+ if (am_wait(100,0)) return 3;
+ if (am_wait(100,1)) return 4;
+
+ for(uint8_t i = 0; i < 5; i++) {
+ uint8_t sensor_byte = 0;
+ for(uint8_t j = 1; j <= 8; j++) {// get 8 bits from sensor
+ if (am_wait(88,0)) return 5;
+
+ TCNT1=0;while(TCNT1==0);;while(TCNT1<35) ;
+ sensor_byte <<= 1; // add new lower byte
+ if (SENSOR_is_hi) {// if sda high after 30us => bit=1 else bit=0
+ sensor_byte |= 1;
+ if (am_wait(45,1)) return 6;// 30us - 75us = 45us
+ }
+ }
+ sensor_data[i] = sensor_byte;
+ }
+
+ // checksum
+ if ( ((sensor_data[0]+sensor_data[1]+sensor_data[2]+sensor_data[3]) & 0xff ) != sensor_data[4])
+ {
+ // debug output
+ //printf("%b %b %b %b %b %b" CR, sensor_data[0], sensor_data[1], sensor_data[2], sensor_data[3], sensor_data[4], ((sensor_data[0]+sensor_data[1]+sensor_data[2]+sensor_data[3]) & 0xff ));
+ PORTB&=~(1<<PINB0);
+ return 7;
+ }
+ if (!testSW()) {
+#ifdef FP_CALC
+ double htemp;
+ if (sensor_data[2]&0x80) { //min
+ sensor_data[2]&=~(0x80);
+ htemp=-((sensor_data[2]<<8) + sensor_data[3]);
+ } else
+ htemp=((sensor_data[2]<<8) + sensor_data[3]);
+ double hhum=(1.0546-0.000216*htemp)*((sensor_data[0]<<8) + sensor_data[1]);
+
+ lam2302_hum=0.318*hhum +76;
+ lam2302_temp=htemp*25.6;
+#else
+
+ if (sensor_data[2]&0x80) { //minus
+ sensor_data[2]&=~(0x80);
+ lam2302_temp=-((sensor_data[2]<<8) + sensor_data[3]);
+ } else
+ lam2302_temp=((sensor_data[2]<<8) + sensor_data[3]);
+
+ lam2302_hum=((sensor_data[0]<<8) + sensor_data[1]);
+ volatile uint32_t h1=lam2302_temp*lam2302_hum*3/44803;
+ lam2302_hum=lam2302_hum*16/49-h1+80;
+ //lam2302_temp=lam2302_temp*128/5;
+
+ int16_t h2=lam2302_temp%5;
+ lam2302_temp=lam2302_temp/5;
+ lam2302_temp*=128;
+ lam2302_temp+=h2*128/5;
+#endif
+ config_info[5]=7;
+ }
+ else {
+ if (sensor_data[2]&0x80) { //minus
+ sensor_data[2]&=~(0x80);
+ lam2302_temp=-((sensor_data[2]<<8) + sensor_data[3]);
+ } else
+ lam2302_temp=((sensor_data[2]<<8) + sensor_data[3])*25.6;;
+
+ lam2302_hum=((sensor_data[0]<<8) + sensor_data[1]);
+ config_info[5]=12;
+ }
+ rSREG=SREG;
+ cli();
+ am2302_hum=lam2302_hum;
+ am2302_temp=lam2302_temp;
+ SREG=rSREG;
+ return 0;
+}
+
+
+uint8_t am2302_2() { //4mhz
+ int16_t lam2302_temp;
+ uint16_t lam2302_hum;
+ uint8_t rSREG;
+ uint8_t sensor_data[5];
+ #if defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
+ TCCR1=(1<<CS11)|(1<<CS10); //Clock/8 1µs
+ #endif
+
+ #if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)
+ TCCR1B=(1<<CS11); //Clock/8 1µs
+ #endif
+ SENSOR_sda_out;
+ SENSOR_sda_low; // MCU start signal
+ TCNT1=0;while(TCNT1==0);while(TCNT1<250) {}// start signal (pull sda down for min 0.8ms and maximum 20ms)
+ TCNT1=0;while(TCNT1==0);while(TCNT1<250) {}// start signal (pull sda down for min 0.8ms and maximum 20ms)
+ SENSOR_sda_in;
+ if (am_wait(200,1)) return 2;
+
+ // AM2302 response signal min: 75us typ:80us max:85us
+ if (am_wait(100,0)) return 3;
+ if (am_wait(100,1)) return 4;
+
+ for(uint8_t i = 0; i < 5; i++) {
+ uint8_t sensor_byte = 0;
+ for(uint8_t j = 1; j <= 8; j++) {// get 8 bits from sensor
+ if (am_wait(88,0)) return 5;
+
+ TCNT1=0;while(TCNT1==0);;while(TCNT1<35) ;
+ sensor_byte <<= 1; // add new lower byte
+ if (SENSOR_is_hi) {// if sda high after 30us => bit=1 else bit=0
+ sensor_byte |= 1;
+ if (am_wait(45,1)) return 6;// 30us - 75us = 45us
+ }
+ }
+ sensor_data[i] = sensor_byte;
+ }
+
+ // checksum
+ if ( ((sensor_data[0]+sensor_data[1]+sensor_data[2]+sensor_data[3]) & 0xff ) != sensor_data[4])
+ {
+ // debug output
+ //printf("%b %b %b %b %b %b" CR, sensor_data[0], sensor_data[1], sensor_data[2], sensor_data[3], sensor_data[4], ((sensor_data[0]+sensor_data[1]+sensor_data[2]+sensor_data[3]) & 0xff ));
+ PORTB&=~(1<<PINB0);
+ return 7;
+ }
+#ifdef FP_CALC
+ lam2302_hum=0.318* ((sensor_data[0]<<8) + sensor_data[1])+76;
+ if (sensor_data[2]&0x80) { //minus
+ sensor_data[2]&=~(0x80);
+ lam2302_temp=-((sensor_data[2]<<8) + sensor_data[3])*25.6;
+ } else
+ lam2302_temp=((sensor_data[2]<<8) + sensor_data[3])*25.6;
+#else
+
+
+ if (sensor_data[2]&0x80) { //minus
+ sensor_data[2]&=~(0x80);
+ lam2302_temp=-((sensor_data[2]<<8) + sensor_data[3]);
+ } else
+ lam2302_temp=((sensor_data[2]<<8) + sensor_data[3]);
+
+ lam2302_hum=((sensor_data[0]<<8) + sensor_data[1]);
+ volatile uint32_t h1=lam2302_temp*lam2302_hum*3/44803;
+ lam2302_hum=lam2302_hum*16/49-h1+80;
+ //lam2302_temp=lam2302_temp*128/5;
+
+ int16_t h2=lam2302_temp%5;
+ lam2302_temp=lam2302_temp/5;
+ lam2302_temp*=128;
+ lam2302_temp+=h2*128/5;
+#endif
+
+
+ rSREG=SREG;
+ cli();
+ am2302_hum=lam2302_hum;
+ am2302_temp=lam2302_temp;
+ SREG=rSREG;
+ return 0;
+}
+
+
+
+int main(void){
+ PRR|=(1<<PRUSI)|(1<<PRADC); //Switch off usi and adc for save Power
+#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)
+ PORTA=0xFF;
+ PORTB=0xFF-(1<<PORTB0); //Schalter kann gegen Masse sein und zieht dann immer Strom
+ DDRB|=(1<<PORTB0); //Als Ausgang und 0
+#endif
+ OWINIT();
+
+ ACSR|=(1<<ACD); //Disable Comparator
+ ADCSRB|=(1<<ACME); //Disable Analog multiplexer
+ MCUCR &=~(1<<PUD); //All Pins Pullup...
+ MCUCR |=(1<<BODS);
+ MCUCR &=~(1<<PUD);
+
+#if defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
+
+ PORTB|=(1<<PINB0)|(1<<PINB1)|(1<<PINB3)|(1<<PINB4)|(1<<PINB5);
+ DDRB|=(1<<PINB1); //DBLINE
+#define SENSON PORTB|=(1<<PINB0);
+#define SENSOFF PORTB&=~(1<<PINB0);
+ DDRB|=(1<<PINB0); //stromversorgung
+
+ // Set up Watch Dog Timer for Inactivity
+ WDTCR |= ((1<<WDCE) | (1<<WDE)); // Enable the WD Change Bit
+ WDTCR = (1<<WDIE) | // Enable WDT Interrupt
+ (1<<WDP2) | (1<<WDP1); // Set Timeout to ~2 seconds
+#endif
+
+#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)
+
+
+ DDRA|=(1<<PINA1); //stromversorgung
+#define SENSON PORTA|=(1<<PINA1);
+#define SENSOFF PORTA&=~(1<<PINA1);
+
+ // Set up Watch Dog Timer for Inactivity
+ WDTCSR |= (1<<WDCE) ; // Enable the WD Change Bit
+ WDTCSR = (1<<WDIE) | // Enable WDT Interrupt
+ (1<<WDP2) | (1<<WDP1); // Set Timeout to ~2 seconds
+#endif
+
+
+ uint8_t i;
+ uint8_t err;
+#if defined(__AVR_ATtiny25__)
+ for(i=0;i<16;i++) pack.bytes[i]=0;
+#else
+ uint8_t pn=1;
+ for(i=0;i<64;i++) pack.bytes[i]=0;
+#endif
+ //pack.bytes[0]=1;
+ //pack.bytes[1]=2;
+ SENSON
+ _delay_ms(4000);
+ err =am2302_1();
+ sei();
+ while(1) {
+ alarmflag=1;
+ if (am2302_mode==2) {
+ err=am2302_1();
+ if (err!=0) {
+#if defined(__AVR_ATtiny25__)
+#else
+ pack.page3[pn]=err;
+ pn=pn+1;if (pn>31) pn=1;
+#endif
+ }
+ SENSOFF
+ am2302_mode=3;
+ }
+ if (am2302_mode>=8) {
+ am2302_mode=0;
+ SENSON
+ }
+#if defined(__AVR_ATtiny25__)||defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
+ if (((TIMSK & (1<<TOIE0))==0)&& (mode==0))
+#endif
+#if defined(__AVR_ATtiny24__)||defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny24A__)||defined(__AVR_ATtiny44A__) || defined(__AVR_ATtiny84A__)
+ if (((TIMSK0 & (1<<TOIE0))==0)&& (mode==0))
+#endif
+ {
+// CLKPR=(1<<CLKPCE);
+ // CLKPR=(1<<CLKPS2); /*0.5Mhz*/
+ //PORTB&=~(1<<PINB1);
+ MCUCR|=(1<<SE)|(1<<SM1);
+ MCUCR&=~(1<<ISC01);
+ } else {
+ MCUCR|=(1<<SE);
+ MCUCR&=~(1<<SM1);
+ }
+ asm("SLEEP");
+ }
+
+
+}
\ No newline at end of file
tm3d / owSlave2.git / blobdiff